Posted by BillS on July 29, 2015 at 09:03:11:
In Reply to: Lead Gear posted by inshaajee on July 25, 2015 at 07:50:31:
I use the differential formula, gear specs, and differential gear ratio. Write out the formula by substituting each value into each variable. Solve the equation that you get for the unknown, which might be helix angle or lead amount (some formulas include helix angle, some include lead).
You may send me the formula and the complete setup (Gear specs, machine constants,
and formula along with machine manufacturer and model) and I will demonstrate how I would do it. Don't forget the hob cutter
hand and starts.